What is the role of the Commonwealth Parliament in Australia?

The role of the Commonwealth Parliament in Australia primarily involves the creation of laws that apply to the entire nation. This legislative function is characterized by the authority to enact laws regarding issues that fall under its jurisdiction, as outlined in the Australian Constitution. These areas include national defense, immigration, foreign affairs, and trade, among others. Unlike state parliaments, which have the power to legislate on matters specific to their own jurisdictions, the Commonwealth Parliament’s laws have a broad application, addressing matters of national significance that affect all Australians.

The other options inaccurately describe the role of the Commonwealth Parliament. For instance, it does not make laws specifically for the individual states, nor does it enforce state laws at the federal level; enforcement of laws is typically the domain of state authorities. Additionally, while the Commonwealth can influence judicial matters through the establishment of federal courts and legal framework, it does not oversee the judiciary in the sense of controlling its decisions or operations, as the judiciary operates independently of the legislative branch.